Patent US3840996A successfully refreshed from Google Patents.
US3840996A
Expired / Lapsed
US
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Process for drying mineral containing aqueous protein solutions
Assignee: Nutrisearch Co
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Filing: 1973-08-20
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Granted: 1974-10-15
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Expires: 1993-08-20
Abstract
Abstract A process for drying a mineral containing aqueous protein solution in an atomizing dryer wherein there is added to the drying chamber, during atomization of the solution, a drying agent, in dry solids form, at a concentration between about 1% to about 10% by weight of solids in the solution, allowing the drying atmosphere in the dryer to dry the solids in the atomized solution, and recovering the dried product including the drying agent, the product exhibiting improved physical and chemical properties.
Inventors
- 👤 L Post
- 👤 D Grindstaff
- 👤 J Steinreich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:41
CPC Classifications
F; F26; F26B; F26B5/00; A; A23; A23C; A23C1/00; A23C1/04; A23C1/045; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; F26B21/00; F26B21/30; F26B21/33; F26B21/331
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
130 words
A PROCESS FOR DRYING IN AN ATOMIZING DRYER A MINERAL CONTAINING AQUEOUS PROTEIN SOLUTION COMPRISING: A. ATOMIZING A MINERAL CONTAINING AQUEOUS PROTEIN SOLUTION IN THE DRYING CHAMBER OF AN ATOMIZING DRYER; B. CONTACTING THE ATOMIZED SOLUTION IN SAID DRYER CHAMBER WITH A DRYING ATMOSPHERE CONTAINING A DRYING AGENT SELECTED FROM THE GROUP CONSISTING OF TRICALCIUM PHOSPHATE, DICALCIUM PHOSPHATE, KAOLIN, DIATOMACEOUS EARTH, SILICA GEL, CALCIUM SILICATE HYDRATE, OR MIXTURES THEREOF, AT A FEED RATE OF SAID DRYING AGENT EQUIVALENT TO BETWEEN ABOUT 1 PERCENT TO ABOUT 10 PERCENT BY WEIGHT OF SOLIDS CONTAINED IN SAID SOLUTION; C. ALLOWING SAID DRYING ATMOSPHERE TO DRY THE SOLIDS CONTAINED IN SAID ATOMIZED SOLUTION; AND D. RECOVERING THE DRIED SOLIDS, SAID DRIED SOLIDS CONTAINING THE SOLIDS FROM SAID SOLUTION IN COMBINATION WITH SAID DRYING AGENT.
Claim 2
Dependent Claim
130 words
A PROCESS FOR DRYING IN AN ATOMIZING DRYER A MINERAL CONTAINING AQUEOUS PROTEIN SOLUTION COMPRISING: A. ATOMIZING A MINERAL CONTAINING AQUEOUS PROTEIN SOLUTION IN THE DRYING CHAMBER OF AN ATOMIZING DRYER; B. CONTACTING THE ATOMIZED SOLUTION IN SAID DRYER CHAMBER WITH A DRYING ATMOSPHERE CONTAINING A DRYING AGENT SELECTED FROM THE GROUP CONSISTING OF TRICALCIUM PHOSPHATE, DICALCIUM PHOSPHATE, KAOLIN, DIATOMACEOUS EARTH, SILICA GEL, CALCIUM SILICATE HYDRATE, OR MIXTURES THEREOF, AT A FEED RATE OF SAID DRYING AGENT EQUIVALENT TO BETWEEN ABOUT 1 PERCENT TO ABOUT 10 PERCENT BY WEIGHT OF SOLIDS CONTAINED IN SAID SOLUTION; C. ALLOWING SAID DRYING ATMOSPHERE TO DRY THE SOLIDS CONTAINED IN SAID ATOMIZED SOLUTION; AND D. RECOVERING THE DRIED SOLIDS, SAID DRIED SOLIDS CONTAINING THE SOLIDS FROM SAID SOLUTION IN COMBINATION WITH SAID DRYING AGENT.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein said mineral containing aqueous protein solution is derived from cheese whey.
Claim 4
Dependent Claim
26 words
The process of claim 1 wherein said mineral containing aqueous solution is the low molecular weight fraction derived from the molecular sieve fractionation of cheese whey.
Claim 5
Dependent Claim
13 words
The process of claim 3 wherein said cheese whey is acid cheese whey.
Claim 6
Dependent Claim
13 words
The process of claim 3 wherein said cheese whey is sweet cheese whey.
Claim 7
Dependent Claim
18 words
The process of claim 3 wherein said cheese whey is a blend of acid and sweet cheese whey.
Claim 8
Dependent Claim
13 words
The process of claim 1 wherein said atomizing dryer is a spray dryer.
Claim 9
Dependent Claim
12 words
The process of claim 1 wherein said drying atmosphere is heated air.
Claim 10
Dependent Claim
12 words
The process of claim 1 wherein said drying agent is dicalcium phosphate.
Claim 11
Dependent Claim
12 words
The process of claim 1 wherein said drying agent is tricalcium phosphate.
Claim 12
Dependent Claim
18 words
The process of claim 10 wherein said tricalcium phosphate has a particle size less than about 30 microns.
Claim 13
Dependent Claim
26 words
The process of claim 1 wherein said feed rate of said drying agent is between about 2 percent to about 6 percent by weight of solids.
Claim 14
Dependent Claim
26 words
The process of claim 1 wherein said drying agent is fed into said drying chamber in close proximity to the point of atomization of said solution.
Claim 15
Dependent Claim
53 words
The process of claim 1 wherein said drying agent is tricalcium phosphate, said feed rate of said drying agent is between about 2 percent to about 6 percent by weight of solids, and said drying agent is fed into said drying chamber in close proximity to the point of atomization of said solution.
Claim 16
Dependent Claim
26 words
The process of claim 14 wherein said mineral containing aqueous solution is the low molecular weight fraction derived from the molecular sieve fractionation of cheese whey.
Claim 17
Dependent Claim
124 words
A process for drying in a spray dryer a low molecular weight fraction derived from the molecular sieve fractionation of cheese whey comprising: a. atomizing in the drying chamber of a spray dryer a solution containing a low molecular weight fraction derived from the molecular sieve fractionation of cheese whey; b. contacting the atomized solution in said drying chamber with heated air containing tricalcium phosphate at a feed rate of tricalcium phosphate equivalent to between about 2 percent to about 6 percent by weight of solids contained in said solution; c. allowing said heated air to dry the solids contained in said atomized solution; and d. recovering the dried solids, said dried solids containing solIds from said solution in combination with said tricalcium phosphate.
Claim 18
Dependent Claim
124 words
A process for drying in a spray dryer a low molecular weight fraction derived from the molecular sieve fractionation of cheese whey comprising: a. atomizing in the drying chamber of a spray dryer a solution containing a low molecular weight fraction derived from the molecular sieve fractionation of cheese whey; b. contacting the atomized solution in said drying chamber with heated air containing tricalcium phosphate at a feed rate of tricalcium phosphate equivalent to between about 2 percent to about 6 percent by weight of solids contained in said solution; c. allowing said heated air to dry the solids contained in said atomized solution; and d. recovering the dried solids, said dried solids containing solIds from said solution in combination with said tricalcium phosphate.
Claim 19
Dependent Claim
26 words
The process of claim 16 wherein said tricalcium phosphate is fed into said drying chamber in close proximity to the point of atomization of said solution.
Claim 20
Dependent Claim
8 words
The product of the process of claim 1.
Claim 21
Dependent Claim
8 words
The product of the process of claim 16.
References Cited (Backward Citations)
US3414980A
Cited
US3732627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |